Hardware implementation of Free42/Plus42 other than DM42?

[FreeBlues]

How about M5Stack Cardputer? I saw 2 posts talking about it:

https://www.hpmuseum.org/forum/thread-21052.html
https://www.hpmuseum.org/forum/thread-20967.html

Here are its hardware specifications, taken from its [official documentation](https://docs.m5stack.com/en/core/Cardputer).

Quote:M5StampS3 Microcontroller.
56 key keyboard.
1.14 Inch TFT Screen.
Cavity speaker and SPM1423 digital MEMS microphone.
Infrared emission tube is used for infrared control interaction.
HY2.0-4P port for connecting and expanding I2C sensors.
Micro SD card slot for expanding storage space.
The built-in 120mAh and 1400mAh lithium battery in the base provide long battery life.
Base with magnet, compatible with Lego hole expansion.

Its price is $30, but there is a downside: its keyboard is relatively small.